Bull Sas

Baptiste Metge

Benoît Pelletier

Cécile Boukamel-Donnou

Nicolas Arnaise

Rémi Druilhe

Edoh Kodjo

The invention relates to a method of tracking a target object in an image stream captured by a camera, at a capture frequency. The method includes a tracking phase, implemented individually for several processed images of said image stream, wherein the tracking phase includes detecting at least one object, and its position, in the processed image, and identifying the target object among the at least one object detected in the processed image. The tracking phase is carried out at a detection frequency, that is lower than the capture frequency, so that two images processed during two successive iterations of the tracking phase are separated by at least one non-processed image to which the tracking phase is not applied. The invention also relates to a computer program, a device, and a system implementing such a method.

Method, computer program, device, and system for tracking a target object

A method for monitoring a person of interest in video that may be generated by multiple cameras in different locations. A sequence of images along with data such as time and location, called a tracklet, may be generated for the person of interest. This reference tracklet may then be compared to other tracklets received at later times to determine if the person of interest appears in these other tracklets. Analyses may include locating persons in the video images, calculating person signatures, and comparing signatures to signatures of the person of interest. Analyses may also include filters for possible locations of the person of interest based on how quickly this person could move from one location to another, and filters based on color of the person of interest's clothing. Possible matches may be confirmed by an operator, while matches with high confidence may be automatically identified as the person of interest.

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Grenoble, France

Baptiste Metge